Micron Hiroshima fab starts $9.3bn HBM expansion ... - eeNews Europe

Micron Technology has initiated a $9.3 billion expansion at its Hiroshima manufacturing facility to boost production capacity for high-bandwidth memory (HBM) and advanced DRAM, responding to surging d... Read original →

Micron’s $9.3B Hiroshima HBM expansion isn’t just capacity—it’s a strategic re-anchoring of the AI memory stack. This move forces upstream lithography suppliers to accelerate high-NA EUV adaptation for sub-3nm DRAM, while intensifying TSV and hybrid bonding innovation in advanced packaging. Japan’s ¥500B subsidy mitigates capex risk but can’t eliminate rising compliance costs under tightening U.S.-Japan-Netherlands export controls, making supply chain redundancy mandatory. As SK hynix and Samsung scale HBM3E and target HBM4, Micron leverages onshore integration to shorten validation cycles with AI chipmakers like NVIDIA, bundling HBM with DDR5/LPDDR5 as a system-level offering. Over the next 18 months, the HBM race will shift from pure tech leadership to ecosystem lock-in—and Japan’s role as a non-U.S. manufacturing node may become the blueprint for global memory de-risking.